Saline-heating apparatus



Oct. 21,1930. 5. RICHARDSON SALINE HEATING APPARATUS Filed Dec. 7, 1929 Patented Oct. 21, 1930 Parana? ELIZABETH RICHARDSON, OF EL EASO, TEXAS SALINE-HEATIN G APPARATUS Application filed December 7, 1929. Serial No. 412,297.

This invention relates to a saline heating apparatus and more particularly to a heater especially adapted for use in connection with an apparatus of the type disclosed in my prior Patent, No. 1,493,450, issued May 6, 1924.

One object of the invention is to provide a heater by means of which water or another liquid flowing from a water bag or other reservoir to a discharge nozzle through a pipe may be heated as it passes through a tube forming part of the invention and thus delivered to the nozzle in a heated state.

Another object of the invention is to so construct the device that the temperature of the water may be varied and either warm or hot water delivered to the nozzle.

Another object of the invention is to provide a device of this character which is compact in its construction and not liable to 29 easily break or get out of order.

This invention is illustrated in the accompanying drawing wherein:

Fig. 1 is a longitudinal sectional view through the improved heater.

Fig. 2 is a transverse section taken along the line 22 of Fig. 1.

Fig. 3 is a view looking at the rear end of the heater.

Figs. 4 and 5 are end elevations of modified forms of the heater.

Fig. 6 is a wiring diagram.

This improved heater is intended for use in order to heat water passing through a rubber hose from a water bag or other reservoir to a discharge nozzle and'includes a tube 1 preferably formed of glass and adapted to have its ends fitted into front and rear sections 2 and 3 of the hose and firmly secured therein in any manner desired so that leaks will not occur. The tube is straight throughout its length and is of such length that its ends project from the heads 4 and 5 of the casing 6 through which the tube extends. These heads which are respectively rigid with and detachable from the casing are provided with glands 7 and 8 which snugly receive the tube and when tightened hold the casing in a set position about the tube. The casing may be circular in cross section as shown in Figs. 2 and 3, triangular or rectangular, as

shown in Figs. 4 and 5, or any other shape desired. 7

In order to heat the water as it passes through the tube 1, a heating unit is employed consisting of a coil 9 wound about a spool or core 10. The coil is somewhat shorter and of less diameter than the casing 6 in which it fits as shown in Fig. 1 and at one end its core is secured to the bridge 11 of a Ushaped supporting frame 12, the arms 13 of which; terminate in feet 14 secured to the head 5 at opposite sides of the gland 8. The other end of the coil is secured to a strut 15 extending between and firmly fixed to the arms of the frame. Switches 16 and 17 are secured in place by threaded necks passed outwardly through the cap 5. and carrying binding nuts 18 which bear against the feet 14 and through these necks extend plungers 19 and 20 having heads at their outer ends so that the plungers may be easily grasped when it is desired to open or close the switches. Other specific types of switches may be substituted in place of those illustrated if found practical. Since the frame 12 and switches are secured to the head 5 they may be withdrawn from the casing 6 as a unit when the glands are loos cued. Therefore, repairs may be easily made when necessary and the device assembled.

A two strand wire 21 extends through a passage 22 provided in the head 5 and at its outer end carries a plug 23 to be engaged with a socket of a house-wiring system or other source: of electric energy 24. One strand 25 of the wire 21 is attached to the terminal 26 of the switch 16, while the other strand 27 extends to the forward end of the coil 9 and the lead 28 from the rear end of the coil is secured to the terminal 29 of this switch. Therefore, when the switch 16 is closed the current passes through the entire coil and while the tube 1 and water passing through it will be heated, the resistance of the coil will prevent the water from becoming very hot. A branch 30 leads from the strand 25 to the terminal 31 of the switch 17 and to its other terminal 32 is secured to wire 33. the other end of which is secured to the coil midway the length thereof. By this arrangement the switch 17 may be closed and Therefore, the temperature-'ofthe water can be controlled and either warm orhot water supplied to the nozzle of the hose. Since the coil and switches and nearly theentire tube are enclosed by the casing they will be protected and prevented from being liable to be broken.

The improved heating, apparatus herein l disclosed is intended for giving hypoderinoclysus and proctolysis and intravenously any solution entering the human body in 'whichjit'is desired that the "solution be other solutions warmed, such as saline or given in the human bod a 'The apparatus may belined with asbestos or other suitable material. a

' The terms andjexp'ressions which I have employed are used as terms of description and not of hmitatlons, and I have no intenti'on, in the use ofsuch terms andexpressions, of excluding any'equivalen'ts of the features shown and described, or portions thereof, but recognize that various modifications are possible within the scope'of the invention claimed.

: Whati'sclaimied is 1. Aheater, comprisinga casing,

tending longitudinally of thecoil and secured to the detachable head of said casing, switches secured to the detachable head and operable externally of the same, power wires extending through the detachable head and secured one to one end of said coil and the other to a terminal of each switch, a wire leading from the other end of said coil to the second terminal of one switch, and a wire leading from a I point intermediate the length of said coil andsecured to the second terminal of the other switch.

In testimony whereof I afix my signature. ELIZABETH RICHARDSON, R. N.

heads for the ends of said casing, a tube eXtendinglongitudinally in said casing with its ends projecting through said heads for engagement with sections of a conduit, a heating coilin said casing about said tube, a sup port for said 0011 extendlng about the same with ends or" aspool for the coil secured thereto, switches. in said casing secured to v fone head thereof and having actuating elements extending through the head, said'support being secured" to the last-mentioned head and th-e said head being detachable from the casing and together with the tube M coil and switches removable from'the'caslng 'asa unit, wires leading troma terminal'of each switch and secured one to one end of said coil and the other to the coil intermediate the ends thereof, and power-wires extending through the removablehead and secured one to the other end of said coil and the other to the second terminal of each 7 switch. 7

2. A heater comprising a. casing, heads for the ends of said casing, one head being detachable from'said casing, a tube extending longitudinally through said casing with its ends projecting through said heads, means carried by said; heads to releasably secure sald tube in a SbPOSllllOIl, a heating coil about said tube within the casing, a support having a bridge at one end secured to one end of the spool ofsaid coil an'darms ex- 

